Regular Central Ac Units Produce Septic or Rotten Egg Smell

by Elaine Bailey
(SAn Antonio Tx 78253)

We had knew units put in last year at this time.And we have two units. Have modular home.When the front unit comes on. A septic smell or rotten egg smell comes through the back unit. Even when the heat comes on!

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Jan 07, 2011
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starstarstarstarstar		 Septic and Rotten Egg Smell
by: Dadan

I'm not sure I understand your question. What your meant by the back unit. You mean the supply air smells.

It sound like the sewer gas is causing the septic and rotten egg smell. Dead animal could somewhere cause the smell.

I not sure if your central ac unit have fresh air duct.

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